Widefield Iris Nebula embedded in surrounding nebulosity

[old_eyes]

I wanted to do a widefield of the Iris Nebula to pick up some of the darker dust and gas in the area.

So this is 2 hours total exposure in 240 sec subs from Pier 5 @Roboscopes in Spain (Tak Epsilon 180, ASI 2400MC Por, unguided Paramount MX).

I am not convinced about the red glow to the left-hand side of the image, but it does seem to be in the original data and does not get removed with background correction. But even if that is not real, I am quite pleased with all the colder dust and gas in the image.

[carastro]

Love it. 
 

Carole

[Ouroboros]

Fantastic image. It has quite a 3D look to it. 

[simmo39]

Wow, that is so good!

[Ouroboros]

…. In two hours data too. That’s one fast scope.

What Bortle skies are there in Spain, @old_eyes?

[old_eyes]

3 hours ago, Ouroboros said:

…. In two hours data too. That’s one fast scope.

What Bortle skies are there in Spain, @old_eyes?

The scope is an F2.8 Newtonian, so yes it is fast.

The hosting facility quotes SQM 21.5-22.0. It is a different type of measurement and so hard to convert to Bortle, but it would be at the best end of the scale. Say ranging from Bortle 1 to 3 depending on conditions. We still get fog, haze and cloud. This project was supposed to be 4 hours, but I had to ditch half the subs for poor SNR. I am hoping to gather another couple of hours worth to see if it make a better image.

[Ouroboros]

2 hours ago, old_eyes said:

The scope is an F2.8 Newtonian, so yes it is fast.

The hosting facility quotes SQM 21.5-22.0. It is a different type of measurement and so hard to convert to Bortle, but it would be at the best end of the scale. Say ranging from Bortle 1 to 3 depending on conditions. We still get fog, haze and cloud. This project was supposed to be 4 hours, but I had to ditch half the subs for poor SNR. I am hoping to gather another couple of hours worth to see if it make a better image.

Not sure I’d bother if I was you. I mean that in the nicest possible way. 😃  Twice as much data will only improve the S/N by root two.

21.5-22.0 sounds good. That’s Bortle 1 at the top end I believe. ie “Truly dark”.